Diseño y construcción de un reactor mecatrónico para el crecimiento de películas delgadas por la técnica de recubrimiento por inmersión

Velasquez, Alvaro; Urquijo, J. P.; Gutiérrez, Yael

doi:10.17230/ingciencia.10.20.7

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…The flow diagram shown in Figure 4 illustrates the operation process of a film coating system. This procedure is established from the literature on similar systems [11]. The development of the algorithm using free software platforms such as Arduino and the use of pre-assembled hardware allows tests to be carried out on the proposed code, where the working capacity of the equipment's microcontrollers was determined.…”

Section: Electric Circuit and Component Designmentioning

confidence: 99%

Implementation of an Automated Film Deposition Equipment under the sol/gel Dip-Coating Technique

Florez-Bedoya

Mora-Joaqui

Cruz-Muñoz

et al. 2022

IyU

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We present the design, construction, and implementation of thin film deposition equipment based on the Sol/Gel dip-coating technique for the fabrication of coatings under controlled deposition conditions and working environment at ambient temperature and pressure. The deposition system includes a 304 stainless steel structure and a moving platform that holds the substrate and is transported along vertical axes at a deposition distance of up to 30 cm in height. The mechanical and electronic design was considered, using computer-aided development and dimensional validation (for the structure and the motion transmission system) and the programming of the system using the Arduino platform. The design focused on the deposition speed control for the functional equipment operations, whose operating principle is based on a PWM scheme, achieving an immersion/extraction speed parameter in ranges between 1.5 cm/s and 3.5 cm/s (with a resolution of ± 0.2 cm/s). The operation of the equipment and the reproducibility of the deposits were tested by studying the optical properties of CuCoMn coatings on glass. A substrate immersion/extraction speed of 1.5 cm/s and precursor agitation time (0.83 h - 0.98 h) were used, obtaining absorbances higher than 90%. In conclusion, the implemented prototype will allow the research group to produce reproducible thin films of better quality than those made manually, which can be produced at a low cost and offer the possibility of sustainable maintenance of the equipment.

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Section: Electric Circuit and Component Designmentioning

confidence: 99%

Implementation of an Automated Film Deposition Equipment under the sol/gel Dip-Coating Technique

Florez-Bedoya

Mora-Joaqui

Cruz-Muñoz

et al. 2022

IyU

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“…For the growth of the films we used a dip coating equipment developed in our laboratory [13], which is presented in Fig. 2.…”

Section: Growth Of the Filmsmentioning

confidence: 99%

Growth and characterization of magnetite-maghemite thin films by the dip coating method

Velasquez

Arnedo

2017

Hyperfine Interact

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We present the process of growth and characterization of magnetite-maghemite thin films obtained by the dip coating method. The thin films were deposited on glass substrates, using a ferrofluid of nanostructured magnetite-maghemite particles as precursor solution. During the growth of the films the following parameters were controlled: number of dips of the substrates, dip velocity of the substrates and drying times. The films were characterized by Atomic Force Microscopy, Scanning Elelectron Microscopy, four-point method for resistance measurement, Room Temperature Mössbauer Spectroscopy and Hall effect. Mössbauer measurements showed the presence of a sextet attributed to maghemite (γ -Fe 2 O 3 ) and two doublets attributed to superparamagnetic magnetite (Fe 3 O 4 ), indicating a distribution of oxidation states of the iron as well as a particle size distribution of the magnetic phases in the films. Atomic force microscopy measurements showed that the films cover quasi uniformly the substrates, existing in them some pores with sub-micron size. Scanning Electron Microscopy measurements showed a uniform structure in the films, with spherical particles with size around 10 nm. Voltage versus current measurements showed an ohmic response of the films for currents between 0 and 100 nA. On the other hand, Hall effect measurements showed a nonlinear response of the Hall voltage with the magnetic flux density applied perpendicular to the plane of the films, however the response is fairly linear for magnetic flux densities between 0.15 and 0.35 T approximately. The results suggest that the films are promising for application as magnetic flux density sensors.

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Diseño y construcción de un reactor mecatrónico para el crecimiento de películas delgadas por la técnica de recubrimiento por inmersión

Cited by 2 publications

References 6 publications

Implementation of an Automated Film Deposition Equipment under the sol/gel Dip-Coating Technique

Implementation of an Automated Film Deposition Equipment under the sol/gel Dip-Coating Technique

Growth and characterization of magnetite-maghemite thin films by the dip coating method

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